•Lehigh Parkway East between Martin Luther King Jr. Boulevard and Lehigh Parkway North, and Lehigh Parkway north at the entrance to the Lehigh Parkway trail.

•Park Drive in the Lehigh Parkway park

•Martin Luther King Jr. Boulevard between St. Elmo and South Third Street and the roads that intersect with Martin Luther King Jr., including the ramps to 15th Street, South 10th Street, Lehigh Street and West Union Street near Parkettes.

Detours will be posted. Police will be available to direct traffic during these hours. PDF maps of the race courses are available at http://www.stlukeshalfmarathon.com.